Updated to fedora-glibc-20060102T2114cvs/fedora-glibc-2_3_90-25

4 files changed, 21 insertions, 14 deletions

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index b56a261696..fd67f0ff22 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,11 @@
+2006-01-02  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/sparc/tls.h (tcbhead_t): Add pointer_guard field.
+	(THREAD_GET_POINTER_GUARD, THREAD_SET_POINTER_GUARD,
+	THREAD_COPY_POINTER_GUARD): Define.
+	* sysdeps/sparc/tcb-offsets.sym (POINTER_GUARD): Define.
+	* sysdeps/sparc/sparc64/jmpbuf-unwind.h: Revert 2005-12-27 changes.
+
 2006-01-01  Ulrich Drepper  <drepper@redhat.com>
 
 	* version.c: Update copyright year.
diff --git a/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h b/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
index 7752fe971e..92c296b0cf 100644
--- a/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
+++ b/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David S. Miller <davem@davemloft.net>, 2005.
 
@@ -20,23 +20,12 @@
 #include <setjmp.h>
 #include <stdint.h>
 #include <unwind.h>
-#include <sysdep.h>
 
 #define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
   _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
 
-static inline uintptr_t __attribute__ ((unused))
-_jmpbuf_sp (__jmp_buf regs)
-{
-  uintptr_t sp = regs[0].uc_mcontext.mc_fp;
-#ifdef PTR_DEMANGLE
-  PTR_DEMANGLE (sp);
-#endif
-  return sp;
-}
-
 #define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
-  ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+  ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[0].uc_mcontext.mc_fp - (_adj))
 
 /* We use the normal lobngjmp for unwinding.  */
 #define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/nptl/sysdeps/sparc/tcb-offsets.sym b/nptl/sysdeps/sparc/tcb-offsets.sym
index 237f975b25..923af8a5b7 100644
--- a/nptl/sysdeps/sparc/tcb-offsets.sym
+++ b/nptl/sysdeps/sparc/tcb-offsets.sym
@@ -2,5 +2,6 @@
 #include <tls.h>
 
 MULTIPLE_THREADS_OFFSET		offsetof (tcbhead_t, multiple_threads)
+POINTER_GUARD			offsetof (tcbhead_t, pointer_guard)
 PID				offsetof (struct pthread, pid)
 TID				offsetof (struct pthread, tid)
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h
index ddc4848554..127bbf695f 100644
--- a/nptl/sysdeps/sparc/tls.h
+++ b/nptl/sysdeps/sparc/tls.h
@@ -1,5 +1,5 @@
 /* Definitions for thread-local data handling.  NPTL/sparc version.
-   Copyright (C) 2003, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -48,6 +48,7 @@ typedef struct
   int multiple_threads;
   uintptr_t sysinfo;
   uintptr_t stack_guard;
+  uintptr_t pointer_guard;
 } tcbhead_t;
 
 #else /* __ASSEMBLER__ */
@@ -135,6 +136,14 @@ register struct pthread *__thread_self __asm__("%g7");
   ((descr)->header.stack_guard \
    = THREAD_GETMEM (THREAD_SELF, header.stack_guard))
 
+/* Get/set the stack guard field in TCB head.  */
+#define THREAD_GET_POINTER_GUARD() \
+  THREAD_GETMEM (THREAD_SELF, header.pointer_guard)
+#define THREAD_SET_POINTER_GUARD(value) \
+  THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value)
+# define THREAD_COPY_POINTER_GUARD(descr) \
+  ((descr)->header.pointer_guard = THREAD_GET_POINTER_GUARD ())
+
 #endif /* !ASSEMBLER */
 
 #endif	/* tls.h */